1. Michael, A., Fox, A., Griffith, R., Joseph, A.D., Katz, R., Konwinski, A., Lee, G., et al.: Above the clouds: A Berkeley view of cloud computing. University of California, Berkeley, Tech. Rep. UCB. Berkeley (2009)
2. Baun, C., Kunze, M., Nimis, J., Tai, S.: Cloud Computing: Web-basierte dynamische IT-Services. Springer, Berlin (2009)
3. Breiter, G., Behrendt, M.: Life cycle and characteristics of services in the world of cloud computing. IBM Systems Journal (2009)
4. Gerard, B., Marinos, A.: Digital Ecosystems in the Clouds: Towards Community Cloud Computing. IEEE Internet Computing (2009)
5. Rajkumar, B., Yeo, C.S., Venugopal, S., Broberg, J., Brandic, I.: Cloud computing and emerging IT platforms: Vision, hype, and reality for delivering computing as the 5th utility. Future Generation Computer Systems 25(6), 599–616 (2009)